The map above shows Iowa and Northern Mariana Islands side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Iowa vs Northern Mariana Islands Geography
Land area: Iowa has a land area of 55,854 square miles (144,660 km²), while Northern Mariana Islands has 179 square miles (464 km²). Iowa's land area is 311.8 times larger than Northern Mariana Islands'.
Total area: Iowa: 56,273 square miles (145,746 km²) vs Northern Mariana Islands: 179 square miles (464 km²), including inland and coastal water. Iowa's total area is 314.1 times larger than Northern Mariana Islands'.
Length: Iowa is 216 miles (347 km) long from north to south; Northern Mariana Islands is 326 miles (524 km). Northern Mariana Islands' north-south length is 1.5 times (51%) longer than Iowa's.
Width: Iowa spans 335 miles (539 km) east to west; Northern Mariana Islands spans 278 miles (448 km). Iowa's east-west width is 1.2 times (21%) wider than Northern Mariana Islands'.
Highest point: Iowa's highest point is Hawkeye Point at 1,669 feet (509 m); Northern Mariana Islands's is Agrihan at 3,166 feet (965 m). Agrihan is 1,497 feet higher than Hawkeye Point.
Lowest point: Iowa's lowest point is Mississippi River at 480 feet; Northern Mariana Islands's is Pacific Ocean at 0 feet. Northern Mariana Islands's lowest point is 480 feet lower.
Iowa vs Northern Mariana Islands Population and History
Population: Iowa has a population of 3,241,488 (2024), while Northern Mariana Islands has 47,329 (2020). Iowa's population is 68.5 times larger than Northern Mariana Islands'.
Population density: Iowa: 58.0 people per square mile vs Northern Mariana Islands: 264.4. Northern Mariana Islands' population density is 4.6 times (356%) higher than Iowa's.
History: Iowa: Admitted to the Union on December 28, 1846, as the 29th state. Northern Mariana Islands: A US commonwealth since 1978. In its current form, Iowa is the older of the two by 132 years.
Official Websites
Iowa official website · Northern Mariana Islands official website
More Size Comparisons
All Iowa size comparisons · All Northern Mariana Islands size comparisons
Area, elevation and boundary figures come from official national statistics and US Census Bureau and Natural Earth boundary data; US state population, economic, county and tax figures come from the US Census Bureau, the Bureau of Economic Analysis and the Tax Foundation. Figures are rounded and for general reference.